CN106224268B - DC permanent-magnetic brushless frequency conversion axial flow fan - Google Patents
DC permanent-magnetic brushless frequency conversion axial flow fan Download PDFInfo
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- CN106224268B CN106224268B CN201610823663.2A CN201610823663A CN106224268B CN 106224268 B CN106224268 B CN 106224268B CN 201610823663 A CN201610823663 A CN 201610823663A CN 106224268 B CN106224268 B CN 106224268B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/007—Conjoint control of two or more different functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of DC permanent-magnetic brushless frequency conversion axial flow fan including fan frame, impeller, cover disk, line packet, rotor core body, permanent magnet, stator core body, PCB circuit board, heat-dissipating frame, is characterized by：The heat-dissipating frame uses aluminum alloy material, the PCB circuit board round printed board with holes for center, PCB circuit board is welded with double-core microcontroller, pre-driver chip, VMOS power tubes, its radiating surface is then screwed in by horizontal mounting means on the central hexagonal frame of heat-dissipating frame, the cover disk is the hollow cylinder that there is isolation board in a centre, in isolation board center there are one bearing B installation steps, cover disk is separated into two parts by isolation board.Wind turbine proposed by the invention and the DC permanent-magnetic brushless frequency conversion axial flow fan scheme of motor integration, represent the developing direction of DC permanent-magnetic brushless frequency conversion axial flow fan, and application prospect is quite wide.
Description
Technical field
The present invention relates to a kind of DC permanent-magnetic brushless frequency conversion axial flow fans, are mainly used in the ventilation of fixed or mobile equipment
Cooling and desiccant dehumidification.
Background technology
Gas is parallel to the wind turbine of fan rotation shaft flowing, referred to as axial flow blower.Common electric fan, outdoor machine of air-conditioner fan
The wind turbine exactly run in a manner of axis stream.All it is to be placed in fixed position and make air stream for example, for the electric fan enjoyed the cool
Dynamic electrical equipment, the room temperature wind energy that it blows out accelerates human sweat's evaporation, reduces shell temperature, thus is widely used.
In general, flow direction of the axial fan due to not changing air dielectric, be typically used in that gas flow is more demanding and pressure
It is required that relatively low occasion, i.e., the occasion of so-called Wind Volume lower resistance：I.e. for the heat dissipation drop of computer CPU, high-power electronic device
Temperature or for restaurant, gymnasium, meeting room, workshop, warehouse, swimming pool, the ventilation in greenhouse, air-conditioning system, refrigeration system and dry
Dry dehumidification system.
Traditional axial flow blower can be divided into single phase ac shaded-pole and drive, is single-phase according to the Type division of motor drive
The driving of ac capacitor formula, the driving of AC and DC series excitation type motor.But this kind of type of drive is because using alternating current, so as to limit
Its use scope has been made, generally can be only applied to the stationary applica-tions there are AC power, and fan speed-regulating can only pass through change
Coil voltage is divided into several fixed gears and carries out.Although the axial flow blower of AC and DC series excitation type motor driving can also be used
On the mobile apparatus, but inside it there are brushes and mechanical commutator, are particularly easy to damage due to carbon distribution.
The axial flow blower driven using brushless, permanently excited direct current motor, due to the use of direct current supply, not by network voltage wave
Dynamic influence can be widely used in the various mobile equipment such as vehicle, ship, spacecraft.Obviously, permanent magnet brushless dc
The advantage of motivation driving is fairly obvious, all to realize stepless speed regulation without brush and mechanical commutator in motor,
It operates steadily, low noise, starting torque is big, there is wider speed adjustable range, and operating rotational speed range is very big, can meet various operation moulds
Rotating speed requirement under formula, can keep output torque, long lifespan under ultralow rotary regimes, and many aspects have surmounted exchange
The performance of frequency converter can replace small-power AC variable-frequency speed regulation system completely.In energy saving aspect, brushless, permanently excited direct current motor
Use permanent magnet excitation, without drawing exciting current from power grid, so without alternating flux in rotor, on rotor not only without copper loss but also
Without iron loss, good energy-conserving effect, efficiency ratio is high by 10% or so with capacity asynchronous motor.
Invention content
1st, a complete DC permanent-magnetic brushless frequency conversion axial flow fan should include four parts：First, generate power source
Brushless, permanently excited direct current motor；Second is that the rotating part with impeller；Third, the position sensor of detection rotor current location；
Fourth, variable-frequency speed-regulating controller.
2nd, it since complete DC permanent-magnetic brushless frequency conversion axial flow fan includes four partial devices, installs and uses also numb
It is tired, it needs to connect four partial devices by inside and outside wiring, so once damaging, it is quite inconvenient to safeguard.
Accordingly, the present invention proposes a kind of DC permanent-magnetic brushless frequency conversion axial flow fan scheme, and the maximum feature of the invention is
It is directly that the required thin consolidation of DC permanent-magnetic brushless frequency conversion axial flow fan is integral, and after optimized control algolithm, pass through
The mode of software softening eliminates hall position sensor, have it is compact-sized, install and use simple, of low cost, energy saving drop
Consumption is suitble to the characteristics of large-scale production, has very wide application prospect.
Technical solution
For this purpose, the present invention proposes a kind of DC permanent-magnetic brushless frequency conversion axial flow fan designing scheme, technical solution is specific
It is as follows：
DC permanent-magnetic brushless frequency conversion axial flow fan, including fan frame, impeller, cover disk, line packet, rotor core body, permanent magnetism
Body, stator core body, PCB circuit board, heat-dissipating frame, control cable, double-core microcontroller, pre-driver chip, VMOS power
Pipe, is characterized by：
The heat-dissipating frame uses aluminum alloy material, and shape is in cylinder, has engraved cylinder extracorporeal thread on cylinder, has dissipated
Hot lower portion middle position hollows out into hexagon, and there are four hangers, the center of each hangers on heat-dissipating frame hole, and screw is worn
Fan frame mounting hole on passing through fan frame is connected as one respectively with hangers with holes on heat-dissipating frame；
PCB circuit board is central round printed board with holes, and four arcs are respectively uniformly distributed on the circumference of PCB circuit board
Notch, ensure PCB circuit board around being embedded into heat-dissipating frame after hangers, PCB circuit board is welded with double-core microcontroller, preposition
Driving chip is welded on using the pin of the VMOS power tubes of TOP220 encapsulation in PCB circuit board, and radiating surface is then by horizontal
Mounting means is screwed on the central hexagonal frame of heat-dissipating frame, at most allows to pacify on every one side of hexagon
Fill the VMOS power tubes of four TOP220 encapsulation；
The cover disk is the hollow cylinder that there is isolation board in a centre, and in isolation board center, there are one bearing B
Cover disk is separated into two parts by installation step, isolation board, is carried on one end inner wall belt internal thread of cover disk, other end inner wall
Prominent arc raised line, wherein be assembled with the heat-dissipating frame after PCB circuit board screws into cover disk by its cylinder
In internal thread, make heat-dissipating frame（10）It is connected with cover disk；
Stator core body is formed by stacking by multi-disc silicon steel punching, has opening and arc groove on stator core body, by line
It is after being packaged into the opening of rotor core body, rotor core body is convex with arc at one end along the direction insertion installation of arc groove
In the cover disk of item, it is useful for the threading hole of line packet on isolation board, each coil outlet in line packet passes through threading hole and PCB circuits
Plate is connected,
The middle position of rotor core body is equipped with rotation axis, and positioning arc groove is provided on the edge of rotor core body simultaneously
And the permanent magnet of tile is embedded with, bearing A and bearing B are assembled respectively in rotation axis, and bearing A is embedded into the bearing of fan frame again
In A installation steps, bearing B is embedded into the bearing B installation steps of cover disk demarcation strip；
With blade on impeller, the center of impeller is there are one the step cutting pattern containing ribs, at step cutting pattern center
There are one rotation axis connecting hole, the threaded one end in rotation axis is connected with the rotation axis connecting hole of impeller.
The fan frame uses aluminum alloy material, and outside is hexagonal, intermediate rounded, on fan frame there are one
Wire output protector hole and four reinforcement ribs, wherein one is strengthened being provided with line embedding groove on rib, the control cable is along embedding
Wire casing cabling, one end are drawn after passing through wire output protector hole, and the other end of cable is controlled to be directly welded in PCB circuit board.
The control cable is eight core cables, is respectively：Positive pole（B+）, power cathode（B-）, urgent system
Dynamic (BRK), wind turbine startup/stopping（BRK）, wind turbine rotating（F/R）, speed governing（SPEED）, Vc (+5V), common end（COM）,
In, wind turbine startup/stopping（BRK）Connect startup/shutdown switch, positive/negative turn of wind turbine（F/R）External motor is positive/negative to turn on pass, promptly
Braking (BRK) connects emergency stop switch, the speed governing（SPEED）And Vc (+5V), common end（COM）Common external speed governing turns
.
High-speed multiply division arithmetic unit is integrated in the double-core singlechip chip simultaneously（iMDU）It is revolved with for coordination
Turn vectored digital computing unit（iCORDIC）Kernel, the I/O pins of double-core microcontroller are connected with pre-driver chip, VMOS work(
The control terminal of rate pipe is connected again with pre-driver chip.
DC permanent-magnetic brushless frequency conversion axial flow fan proposed by the present invention has the advantages that：
1st, DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention, is integrated with brushless, permanently excited direct current motor, impeller
And controller part, realize frequency control, driving, the Trinitarian function of control, it is easy for installation using simple, it realizes and is
System most saves, total optimization.
2nd, on the topology, by the design to fan frame, impeller, aluminium alloy heat-dissipating frame and cover disk, well
Solve the integral structure of wind turbine, motor and controller, it is compact-sized rationally, while solve the assembling of VMOS power tubes and
Heat dissipation problem.
3rd, common position sensor Hall element is eliminated, employs based on back-EMF determination technology to determine rotor
Real time position, motor are rotated since static, are employed and are accelerated since static, until rotating speed is sufficiently large, then are switched to
The three steps start technology of brushless direct current motor operating status.
4th, using efficient double-core microcontroller substitution DSP control chip, solve DC permanent-magnetic brushless frequency conversion axial flow fan with
Contradiction between hardware spending greatly reduces manufacture cost.
Obviously, DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention has no longer been that a kind of monotechnics are integrated, comprehensive
Closing technology content has and is obviously improved, and belongs to a kind of completely new DC frequency-changing axial flow blower, can extensively using various fixations or
In mobile equipment.
Description of the drawings
Fig. 1 DC permanent-magnetic brushless frequency conversion axial flow fan outline drawings；
Fig. 2 DC permanent-magnetic brushless frequency conversion axial flow fans explosive view one；
Fig. 3 removes the interior views one after fan frame, impeller；
Fig. 4 removes the interior views two after fan frame, impeller；
Fig. 5 DC permanent-magnetic brushless frequency conversion axial flow fans explosive view two；
Fig. 6 DC permanent-magnetic brushless frequency conversion axial flow fans explosive view three；
Fig. 7 DC permanent-magnetic brushless frequency conversion axial flow fans explosive view four；
Fig. 8 DC permanent-magnetic brushless frequency conversion axial flow fans explosive view five；
Fig. 9 DC permanent-magnetic brushless frequency conversion axial flow fans explosive view six；
Figure 10 DC permanent-magnetic brushless frequency conversion axial flow fans explosive view seven.
Label declaration：
1 fan frame, 2 impeller
3 blade, 4 cover disk
5 line packet, 6 rotor core body
7 permanent magnet, 8 stator core body
9 PCB circuit board, 10 heat-dissipating frame
11 double-core microcontroller, 12 bearing B installation steps
13 rotation axis connecting hole, 14 bearing A installation steps
15 strengthen 16 pre-driver chip of rib
17 cylinder extracorporeal thread, 18 VMOS power tubes
19 hexahedron cover board, 20 cable hole
21 fan frame mounting hole, 22 internal thread
23 wire output protector hole, 24 hangers
25 control 26 rotation axis of cable
27 line embedding groove, 28 VMOS pipe mounting holes
29 bearing A, 30 bearing B
31 arc raised line, 32 arc groove
33 notches
Specific embodiment
The present invention is as shown in Figures 1 to 10.
Illustrate specific embodiments of the present invention below in conjunction with the accompanying drawings：
DC permanent-magnetic brushless frequency conversion axial flow fan, including fan frame（1）, impeller（2）, cover disk（4）, line packet（5）, rotor
Iron core（6）, permanent magnet（7）, stator core body（8）, PCB circuit board（9）, heat-dissipating frame（10）, control cable（25）, it is double
Core microcontroller（11）, pre-driver chip（16）, VMOS power tubes（18）, it is characterized by：
The heat-dissipating frame（10）Using aluminum alloy material, shape is in cylinder, and the outer spiral shell of cylinder has been engraved on cylinder
Line（17）, heat-dissipating frame（10）Center of inside position hollows out into hexagon, heat-dissipating frame（10）It is upper that there are four hangers（24）, each
Hangers（24）Center have a hole, screw passes through fan frame（1）On fan frame mounting hole（21）Respectively with heat-dissipating frame
（10）Upper hangers with holes（24）It is connected as one；
The PCB circuit board（9）The round printed board with holes for center, PCB circuit board（9）Circumference on it is uniform respectively
It is distributed the notch of four arcs（33）, ensure PCB circuit board（9）Around the hangers of arc（24）After be embedded into heat-dissipating frame（10）
In, PCB circuit board（9）It is welded with double-core microcontroller（11）, pre-driver chip（16）, using the VMOS power of TOP220 encapsulation
Pipe（18）Pin be welded on PCB circuit board（9）On, radiating surface is then screwed in heat dissipation frame by horizontal mounting means
Frame（10）The hexagonal frame in center on, VMOS that four TOP220 of installation is at most allowed to encapsulate on every one side of hexagon
Power tube（18）；
The cover disk（4）It is the hollow cylinder that there is isolation board in a centre, in isolation board center, there are one axis
Hold B installation steps（12）, isolation board is by cover disk（4）Two parts are separated into, wherein in cover disk（4）One end inner wall belt internal thread
（22）, with prominent arc raised line on other end inner wall（31）, wherein being assembled with PCB circuit board（9）Heat-dissipating frame afterwards
（10）Pass through its cylinder extracorporeal thread（17）It is screwed into cover disk（4）Internal thread（22）In, make heat-dissipating frame（10）With cover disk（4）
It is connected；
The stator core body（8）It is to be formed by stacking by multi-disc silicon steel punching, stator core body（8）On have opening（34）
And arc groove（32）, by line packet（5）It is packed into rotor core body（6）Opening（34）Afterwards, by rotor core body（6）Along arc
Groove（32）Direction be inserted into installation at one end band arc raised line（31）Cover disk（4）In, line packet is useful on isolation board（5）'s
Threading hole（20）, line packet（5）In each coil outlet pass through threading hole（20）With PCB circuit board（9）It is connected；
The rotor core body（6）Middle position rotation axis is installed（26）, rotor core body（6）Edge on open
There is positioning arc groove（32）And the permanent magnet embedded with tile（7）, rotation axis（26）Upper assembling bearing A respectively（29）And axis
Hold B（30）, bearing A（29）It is embedded into fan frame again（1）Bearing A installation steps（14）In, bearing B（30）It is embedded into cover disk
（4）The bearing B installation steps of demarcation strip（12）In；
The impeller（2）It is upper to carry blade（3）, impeller（2）Center there are one the step cutting pattern containing ribs,
There are one rotation axis connecting holes at step cutting pattern center（13）, rotation axis（26）On threaded one end and impeller（2）Rotation axis
Connecting hole（13）It is connected.
The fan frame（1）Using aluminum alloy material, outside is hexagonal, intermediate rounded, fan frame（1）On
There are one wire output protector holes（23）With four reinforcement ribs（15）, wherein one is strengthened being provided with line embedding groove on rib（27）, it is described
Control cable（25）Along line embedding groove（27）Cabling, one end pass through wire output protector hole（23）After draw, control cable
（25）The other end be directly welded at PCB circuit board（9）On.
The control cable（25）For eight core cables, it is respectively：Positive pole（B+）, power cathode（B-）, it is tight
Anxious braking (BRK), wind turbine startup/stopping（BRK）, wind turbine rotating（F/R）, speed governing（SPEED）, Vc (+5V), common end
（COM）, wherein, wind turbine startup/stopping（BRK）Connect startup/shutdown switch, positive/negative turn of wind turbine（F/R）External positive/negative turn of motor
Switch, emergency braking (BRK) connect emergency stop switch, the speed governing（SPEED）And Vc (+5V), common end（COM）It is common outer
Connect speed control crank.
The double-core microcontroller（11）High-speed multiply division arithmetic unit is integrated in chip simultaneously（iMDU）With for assisting
Adjust rotating vector digital computing unit（iCORDIC）Kernel, double-core microcontroller（11）I/O pins and pre-driver chip（16）
It is connected, VMOS power tubes（18）Control terminal again with pre-driver chip（16）It is connected.
It should be pointed out that most cleverly design includes four parts to the present invention, first, using wind turbine and controller electromechanical
The topological structure of change changes wind turbine with controlling the traditional pattern detached；Second is that PCB circuit board（9）With heat-dissipating frame（10）'s
Connection mode, in PCB circuit board（9）Electronic component be welded on heat-dissipating frame（10）Middle position hollows out into hexagon
At position, and tri- groups of upper and lower bridge arm VMOS power tubes of U, V, W（18）With heat-dissipating frame（10）It is connected with horizontal, is substantially increased scattered
Heating rate；Third, cover disk（4）Two parts, a portion installation heat-dissipating frame are divided by demarcation strip（10）, another part
Stator core body is installed（8）, effectively overcome electromagnetic interference；Fourth, using double-core microcontroller（11）, controlling when making in fact
It can significantly improve.
Many adverse effects are brought for the hall position sensor of conventional permanent magnet brushless dc motor, in present invention side
Hall position sensor is eliminated in case, after removing hall position sensor, realizes the motor rotor inspection of position-sensor-free
Based on Back-EMF Method, extended Kalman filter or flux linkage estimation method scheme may be selected in observing and controlling system, present invention employs it is ripe based on
Based on Back-EMF Method detection technique and accelerate since static, until rotating speed is sufficiently large, then switch to brushless direct current motor fortune
The three steps start technology of row state, these technologies belong to known technology, are not the ranges of the present invention program discussion.
In conclusion DC permanent-magnetic brushless frequency conversion axial flow fan proposed by the invention, is beneficial to meaning：
DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention, be integrated with brushless, permanently excited direct current motor, impeller and
Controller part realizes frequency control, driving, the Trinitarian function of control, is suitble to the axial flow blower of 100W to 2KW, has
Using simple, installation and it is easy to maintain the characteristics of, realize system and most save, total optimization.
On the topology, it by the topology design to fan frame, impeller, heat-dissipating frame and cover disk, well solves
The integral structure of wind turbine, motor and controller, it is compact-sized rationally, while solve the assembling of VMOS power tubes and heat dissipation
Problem.
Common position sensor Hall element is eliminated, employs based on back-EMF determination technology to determine the reality of rotor
When position, motor rotates since static, employs and accelerate since static, until rotating speed is sufficiently large, then switches to nothing
The three steps start technology of brush dc motor operating status.
Using efficient double-core microcontroller substitution DSP control chips, solve DC permanent-magnetic brushless frequency conversion axial flow fan with it is hard
Contradiction between part expense greatly reduces manufacture cost.
Obviously, DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention has no longer been that a kind of monotechnics are integrated, comprehensive
Closing technology content has and is obviously improved, and belongs to a kind of completely new DC frequency-changing axial flow blower, can extensively using various fixations or
In mobile equipment.
Specifically, DC permanent-magnetic brushless frequency conversion axial flow fan scheme proposed by the invention, provides one kind
The structure of the solution of the DC frequency-changing axial flow blower of low-cost energy-saving, wind turbine and motor integration, represent permanent magnetism without
The developing direction of brush DC frequency-changing axial flow blower, application prospect are quite wide.
Claims (4)
1. DC permanent-magnetic brushless frequency conversion axial flow fan, including fan frame（1）, impeller（2）, cover disk（4）, line packet（5）, rotor iron
Heart body（6）, permanent magnet（7）, stator core body（8）, PCB circuit board（9）, heat-dissipating frame（10）, control cable（25）, double-core
Microcontroller（11）, pre-driver chip（16）, VMOS power tubes（18）, it is characterised in that：
The heat-dissipating frame（10）Using aluminum alloy material, shape is in cylinder, and cylinder extracorporeal thread has been engraved on cylinder
（17）, heat-dissipating frame（10）Center of inside position hollows out into hexagon, heat-dissipating frame（10）It is upper that there are four hangers（24）, it is each to hang
Ear（24）Center have a hole, screw passes through fan frame（1）On fan frame mounting hole（21）Respectively with heat-dissipating frame（10）
Upper hangers with holes（24）It is connected as one；
The PCB circuit board（9）The round printed board with holes for center, PCB circuit board（9）Circumference on be respectively uniformly distributed
The notch of four arcs（33）, ensure PCB circuit board（9）Around the hangers of arc（24）After be embedded in heat-dissipating frame（10）In,
PCB circuit board（9）It is welded with double-core microcontroller（11）, pre-driver chip（16）, using the VMOS power tubes of TOP220 encapsulation
（18）Pin be welded on PCB circuit board（9）On, radiating surface is then screwed in heat-dissipating frame by horizontal mounting means
（10）The hexagonal frame in center on, VMOS work(that four TOP220 of installation is at most allowed to encapsulate on every one side of hexagon
Rate pipe（18）；
The cover disk（4）It is the hollow cylinder that there is isolation board in a centre, in isolation board center, there are one bearing B to pacify
Fill step（12）, isolation board is by cover disk（4）Two parts are separated into, in cover disk（4）One end inner wall belt internal thread（22）, in addition one
It holds on inner wall with prominent arc raised line（31）, wherein being assembled with PCB circuit board（9）Heat-dissipating frame afterwards（10）Pass through its circle
Cylinder external screw thread（17）It is screwed into cover disk（4）Internal thread（22）In, make heat-dissipating frame（10）With cover disk（4）It is connected；
The stator core body（8）It is to be formed by stacking by multi-disc silicon steel punching, stator core body（8）On have opening（34）And arc
Connected in star（32）, by line packet（5）It is packed into rotor core body（6）Opening（34）Afterwards, by rotor core body（6）Along arc groove
（32）Direction be inserted into installation at one end band arc raised line（31）Cover disk（4）In, line packet is useful on isolation board（5）Threading
Hole（20）, line packet（5）In each coil outlet pass through threading hole（20）With PCB circuit board（9）It is connected；
The rotor core body（6）Middle position rotation axis is installed（26）, rotor core body（6）Edge on be provided with it is fixed
Position arc groove（32）And the permanent magnet embedded with tile（7）, rotation axis（26）Upper assembling bearing A respectively（29）With bearing B
（30）, bearing A（29）It is embedded into fan frame again（1）Bearing A installation steps（14）In, bearing B（30）It is embedded into cover disk（4）
The bearing B installation steps of demarcation strip（12）In；
The impeller（2）It is upper to carry blade（3）, impeller（2）Center there are one the step cutting pattern containing ribs, it is round
There are one rotation axis connecting holes at step center（13）, rotation axis（26）On threaded one end and impeller（2）Rotation axis connection
Hole（13）It is connected.
2. DC permanent-magnetic brushless frequency conversion axial flow fan according to claim 1, it is characterised in that：The fan frame
（1）Using aluminum alloy material, outside is hexagonal, intermediate rounded, fan frame（1）It is upper that there are one wire output protector holes（23）With
Four reinforcement ribs（15）, wherein one is strengthened being provided with line embedding groove on rib（27）, the control cable（25）Along embedding
Wire casing（27）Cabling, one end pass through wire output protector hole（23）After draw, control cable（25）The other end be directly welded at PCB
Circuit board（9）On.
3. DC permanent-magnetic brushless frequency conversion axial flow fan according to claim 1 or 2, it is characterised in that：The control electricity
Cable（25）For eight core cables, it is respectively：Positive pole（B+）, power cathode（B-）, emergency braking (BRK), wind turbine start/
Stop（BRK）, wind turbine rotating（F/R）, speed governing（SPEED）, Vc (+5V), common end（COM）, wherein, wind turbine startup/stopping
（BRK）Connect startup/shutdown switch, positive/negative turn of wind turbine（F/R）External motor is positive/negative to turn on pass, and emergency braking (BRK) connects promptly
Brake switch, the speed governing（SPEED）And Vc (+5V), common end（COM）Common external speed control crank.
4. DC permanent-magnetic brushless frequency conversion axial flow fan according to claim 1, it is characterised in that：The double-core microcontroller
（11）High-speed multiply division arithmetic unit is integrated in chip simultaneously（iMDU）With for coordinating rotating vector digital computing unit
（iCORDIC）Kernel, double-core microcontroller（11）I/O pins and pre-driver chip（16）It is connected, VMOS power tubes（18）'s
Control terminal again with pre-driver chip（16）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823663.2A CN106224268B (en) | 2016-09-15 | 2016-09-15 | DC permanent-magnetic brushless frequency conversion axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823663.2A CN106224268B (en) | 2016-09-15 | 2016-09-15 | DC permanent-magnetic brushless frequency conversion axial flow fan |
Publications (2)
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| CN107100866A (en) * | 2017-03-17 | 2017-08-29 | 渤海船舶职业学院 | A kind of blower fan of electromagnetic drive flabellum |
| CN109139520B (en) * | 2017-06-16 | 2022-03-08 | 蒋亮健 | Oscillating angle regulator for electric fan |
| CN107482867B (en) * | 2017-08-21 | 2019-04-05 | 彭希南 | A kind of three-phase permanent brushless DC hub motor |
| US11884128B2 (en) | 2017-12-18 | 2024-01-30 | Carrier Corporation | Fan stator construction to minimize axial depth |
| CN110594885B (en) * | 2018-05-24 | 2021-06-04 | 湖南匡为科技有限公司 | Air purifying and deodorizing device |
| CN108852247B (en) * | 2018-06-04 | 2019-11-12 | 彭希南 | A kind of electric shoes polisher |
| CN108730218B (en) * | 2018-06-04 | 2020-02-04 | 彭希南 | Full-automatic frequency-variable speed-adjustable ventilating fan |
| CN108708868B (en) * | 2018-06-04 | 2020-08-11 | 彭希南 | Frequency conversion axial fan |
| TWM628181U (en) * | 2022-01-21 | 2022-06-11 | 閎博科技有限公司 | Portable type electric fan |
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| US6380648B1 (en) * | 2001-06-11 | 2002-04-30 | Chun-Pu Hsu | Wheel drum structure of inner stator portion with inbuilt switches |
| TW200830675A (en) * | 2007-01-11 | 2008-07-16 | Rhine Electronic Co Ltd | Material improvement and usage of stator and rotor in DC brushless motor of ceiling fan |
| KR100908396B1 (en) * | 2007-04-23 | 2009-07-20 | 주식회사 아모텍 | XLD motor stator, XLD motor with double rotor / single stator structure and automotive cooling device using same |
| JP5218220B2 (en) * | 2009-03-31 | 2013-06-26 | 株式会社島津製作所 | Turbo molecular pump device and control device thereof |
| CN101951109B (en) * | 2010-10-12 | 2012-03-28 | 彭希南 | Direct drive type permanent magnet direct current brushless motor |
| CN201966776U (en) * | 2011-01-06 | 2011-09-07 | 彭希南 | Permanent magnet DC brushless motor for driving air compressor |
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Effective date of registration: 20230817 Address after: 510000, 2nd Floor, Building 4, No. 7 Lanhua Street, Dagang Industrial Zone, Baiyun Lake Street, Baiyun District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Guanxie Fan Manufacturing Co.,Ltd. Address before: 410003 Hunan province Changsha Kaifu District Sifangping teachers village 5 Building No. 402 Patentee before: Peng Xinan |